document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=804135>Question 804135</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can i Please ask for extra assistance on solving this simultaneous equation by the SUBSTITUTION Technique? Would really appreciate any help I can get.\r<BR>\n" );
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document.write( "4x+y=9<BR>\n" );
document.write( "3x+2y=13\r<BR>\n" );
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document.write( "THANK YOU! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #484628 by </B><A HREF=/tutors/aboutme.mpl?userid=thejackal><B>thejackal(72)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=thejackal><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=thejackal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=484628\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4x + y = 9<BR>\n" );
document.write( "3x + 2y = 13\r<BR>\n" );
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document.write( "pick any equation, say equation 1\r<BR>\n" );
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document.write( "4x + y = 9\r<BR>\n" );
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document.write( "express y as a function of x<BR>\n" );
document.write( "thus\r<BR>\n" );
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document.write( "y = 9 - 4x\r<BR>\n" );
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document.write( "plug this equation (otherwise known as substitute) into equation 2\r<BR>\n" );
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document.write( "3x + 2(9 - 4x) = 13\r<BR>\n" );
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document.write( "3x + 18 - 8x = 13\r<BR>\n" );
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document.write( "simplify\r<BR>\n" );
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document.write( "18 - 13 = 8x - 3x\r<BR>\n" );
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document.write( "5 = 5x\r<BR>\n" );
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document.write( "1 = x\r<BR>\n" );
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document.write( "plug this result back into the equation for y\r<BR>\n" );
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document.write( "y = 9 - 4x = 9 - 4(1) = 5\r<BR>\n" );
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document.write( "so y = 5 and x = 1\r<BR>\n" );
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document.write( "trying using the values of y and x in the original equations to prove that you are right<BR>\n" );
document.write( " </SPAN>\n" );
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